Ocean Basin Floor

It occupies approximately one third of the atlantic and indian ocean floors and three quarters of the pacific ocean floor.

Ocean basin floor. Subduction is confined to relatively small island arc systems in the caribbean and the extreme southwest. A number of major features of the basins depart. Ocean basin floor the ocean floor in those parts of the oceans that are more than 2000 m deep. Sunlight does not penetrate to the sea floor making these deep dark ecosystems less productive than those along.

A thick wedged of sediment. Thus it is easy to reconstruct its successive stages. Together they contain the overwhelming majority of all water on the planet and have an average depth of almost 4 km about 2 5 miles. Various features are located along the continental margins and ocean basin floor.

In fact it will. Ocean basin ocean basin deep sea sediments. Among the major ocean basins the atlantic has the simplest pattern of ocean floor ages. In contrast both the pacific and indian oceans are characterized by changes of spreading rate.

Study the maps the world ocean floor map the pacific ocean map and the mid atlantic ridge map and refer to your textbook as needed to answer the following questions. On the world map provided on the following page draw the global mid ocean ridge system in red. Sediment thickness in the oceans averages about 450 metres 1 500 feet. Oceanographers also recognize the southern ocean which encircles antarctica and includes the southernmost parts of the pacific.

The ocean basin floor is everywhere covered by sediments of different types and origins. How do the mountains and the plains in deep ocean basins compare to those on the surface of the continents. The shallow ocean floor between the shoreline and the deep ocean basin is called the. About 70 of the planet s surface is made up of ocean basins which are the regions that are below sea level these areas hold the majority of the planet s water.

Continuing your journey across the ocean basin you would descend the steep continental slope to the abyssal plain. Ocean basin any of several vast submarine regions that collectively cover nearly three quarters of earth s surface. The ocean basins are partially bounded by the continents but they are interconnected which is why marine scientists refer to a single world ocean the world ocean is divided into the north and south pacific north and south atlantic indian and arctic oceans. The only exception are the crests of the spreading centres where new ocean floor has not existed long enough to accumulate a sediment cover.

More modern sources e g floyd 1991 regard the ocean basins more as basaltic plains than as sedimentary depositories since most sedimentation occurs on the continental shelves.